Analysis of Steady State Characteristics for Single-axial Groove Sleeve Bearing

Wang, Lili; Wei, Yujia; Yuan, Guo-teng

doi:10.1088/1757-899x/389/1/012013

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…1 Several research studies have been carried out showing the relevant effects of lubrication conditions on the static performance of the bearing. Tanaka, 2 He et al, 3 Roy and Majumdar, 4 Roy and Laha, 5 and Wang et al 6 applied the classical Reynolds equation to model different supply conditions, investigating the influence of feeding pressure, groove parameters, and inlet flow rate on the location of film reformation boundary and bearing performance. However, the Reynolds equation is not valid in the cavitation region and, therefore, mass conservation is not respected/ensured in the entire bearing domain.…”

Section: Introductionmentioning

confidence: 99%

Effects of bearing lubrication conditions on rotor dynamic behavior

Cunha

Daniel

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Usually, rotor dynamic analyses do not consider the effects of the lubricant supply condition, although this is an important aspect of journal bearing performance. Therefore, this work has implemented a mass-conserving model to realistically describe the oil feeding condition and evaluate its influence on rotor dynamics. This analysis was carried out by varying feeding pressure and groove position and the results indicate that the oil supply conditions significantly influence the bearing performance and affect the dynamic behavior of the entire rotor. In general, lower flow rates lead to a bearing with a greater stability region, as observed mainly in the bearing with a groove at 270° and, on the other hand, the increase in feeding pressure reduces the instability threshold.

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